modiloader | 4454014afef3893fdb8803d3bdf75f4891e19b0aacf56a30b3cf21570eb0024c

Analysis

max time kernel
119s
max time network
118s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
16/12/2024, 18:42

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General

Target

4454014afef3893fdb8803d3bdf75f4891e19b0aacf56a30b3cf21570eb0024cN.exe
Size

90KB
MD5

64da20821cd7a8e71608e8c403003d10
SHA1

e392318dd10f72f185af77d06dc4997516b082b8
SHA256

4454014afef3893fdb8803d3bdf75f4891e19b0aacf56a30b3cf21570eb0024c
SHA512

7422cfe7dee66ee920edc8230107d79d7fa573f1293ffa3aa47aa652131c98ee75d9eb84148dc4882c5493ce89ed74076023190b5fff9cdcad6997415cba1235
SSDEEP

1536:UiYwjQt6QJvzZsgDIWzm/xsXfv+hYhyQQyV5uv4JBrB7w5VRGulTG1ZCL8nj1oDC:0wjZQJvzZsgsW6/Afv+hYfQIm4/rdE3U

Score

10^/10

modiloader discovery persistence trojan upx

Malware Config

Signatures

ModiLoader, DBatLoader
ModiLoader is a Delphi loader that misuses cloud services to download other malicious families.
trojan modiloader
Modiloader family
modiloader

ModiLoader Second Stage 4 IoCs

resource	yara_rule
behavioral2/memory/4560-54-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/4560-56-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/4560-57-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/4560-62-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\Control Panel\International\Geo\Nation	4454014afef3893fdb8803d3bdf75f4891e19b0aacf56a30b3cf21570eb0024cN.exe

Executes dropped EXE 3 IoCs

pid	Process
1736	csrsll.exe
1508	csrsll.exe
4560	csrsll.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Win Pdf = "C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\csrsll.exe"	reg.exe

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 4236 set thread context of 3312	4236	4454014afef3893fdb8803d3bdf75f4891e19b0aacf56a30b3cf21570eb0024cN.exe	84
PID 1736 set thread context of 1508	1736	csrsll.exe	96
PID 1736 set thread context of 4560	1736	csrsll.exe	97

UPX packed file 19 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral2/memory/4236-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4236-5-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/3312-7-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3312-9-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3312-11-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4236-14-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/files/0x000b000000023b93-29.dat	upx
behavioral2/memory/3312-39-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1736-40-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/1736-41-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4560-45-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4560-51-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/1736-55-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4560-54-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4560-56-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4560-57-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3312-60-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1508-61-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4560-62-0x0000000000400000-0x0000000000414000-memory.dmp	upx

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 7 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	csrsll.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	csrsll.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	4454014afef3893fdb8803d3bdf75f4891e19b0aacf56a30b3cf21570eb0024cN.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	4454014afef3893fdb8803d3bdf75f4891e19b0aacf56a30b3cf21570eb0024cN.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	reg.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	csrsll.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	1508	csrsll.exe
Token: SeDebugPrivilege	1508	csrsll.exe
Token: SeDebugPrivilege	1508	csrsll.exe
Token: SeDebugPrivilege	1508	csrsll.exe
Token: SeDebugPrivilege	1508	csrsll.exe
Token: SeDebugPrivilege	1508	csrsll.exe
Token: SeDebugPrivilege	1508	csrsll.exe
Token: SeDebugPrivilege	1508	csrsll.exe
Token: SeDebugPrivilege	1508	csrsll.exe
Token: SeDebugPrivilege	1508	csrsll.exe
Token: SeDebugPrivilege	1508	csrsll.exe
Token: SeDebugPrivilege	1508	csrsll.exe
Token: SeDebugPrivilege	1508	csrsll.exe
Token: SeDebugPrivilege	1508	csrsll.exe
Token: SeDebugPrivilege	1508	csrsll.exe
Token: SeDebugPrivilege	1508	csrsll.exe
Token: SeDebugPrivilege	1508	csrsll.exe
Token: SeDebugPrivilege	1508	csrsll.exe
Token: SeDebugPrivilege	1508	csrsll.exe
Token: SeDebugPrivilege	1508	csrsll.exe
Token: SeDebugPrivilege	1508	csrsll.exe
Token: SeDebugPrivilege	1508	csrsll.exe
Token: SeDebugPrivilege	1508	csrsll.exe
Token: SeDebugPrivilege	1508	csrsll.exe
Token: SeDebugPrivilege	1508	csrsll.exe
Token: SeDebugPrivilege	1508	csrsll.exe
Token: SeDebugPrivilege	1508	csrsll.exe
Token: SeDebugPrivilege	1508	csrsll.exe
Token: SeDebugPrivilege	1508	csrsll.exe
Token: SeDebugPrivilege	1508	csrsll.exe
Token: SeDebugPrivilege	1508	csrsll.exe
Token: SeDebugPrivilege	1508	csrsll.exe
Token: SeDebugPrivilege	1508	csrsll.exe
Token: SeDebugPrivilege	1508	csrsll.exe
Token: SeDebugPrivilege	1508	csrsll.exe
Token: SeDebugPrivilege	1508	csrsll.exe
Token: SeDebugPrivilege	1508	csrsll.exe
Token: SeDebugPrivilege	1508	csrsll.exe
Token: SeDebugPrivilege	1508	csrsll.exe
Token: SeDebugPrivilege	1508	csrsll.exe
Token: SeDebugPrivilege	1508	csrsll.exe
Token: SeDebugPrivilege	1508	csrsll.exe
Token: SeDebugPrivilege	1508	csrsll.exe
Token: SeDebugPrivilege	1508	csrsll.exe
Token: SeDebugPrivilege	1508	csrsll.exe
Token: SeDebugPrivilege	1508	csrsll.exe
Token: SeDebugPrivilege	1508	csrsll.exe
Token: SeDebugPrivilege	1508	csrsll.exe
Token: SeDebugPrivilege	1508	csrsll.exe
Token: SeDebugPrivilege	1508	csrsll.exe
Token: SeDebugPrivilege	1508	csrsll.exe
Token: SeDebugPrivilege	1508	csrsll.exe
Token: SeDebugPrivilege	1508	csrsll.exe
Token: SeDebugPrivilege	1508	csrsll.exe
Token: SeDebugPrivilege	1508	csrsll.exe
Token: SeDebugPrivilege	1508	csrsll.exe
Token: SeDebugPrivilege	1508	csrsll.exe
Token: SeDebugPrivilege	1508	csrsll.exe
Token: SeDebugPrivilege	1508	csrsll.exe
Token: SeDebugPrivilege	1508	csrsll.exe
Token: SeDebugPrivilege	1508	csrsll.exe
Token: SeDebugPrivilege	1508	csrsll.exe
Token: SeDebugPrivilege	1508	csrsll.exe
Token: SeDebugPrivilege	1508	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
4236	4454014afef3893fdb8803d3bdf75f4891e19b0aacf56a30b3cf21570eb0024cN.exe
3312	4454014afef3893fdb8803d3bdf75f4891e19b0aacf56a30b3cf21570eb0024cN.exe
1736	csrsll.exe
1508	csrsll.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 4236 wrote to memory of 3312	4236	4454014afef3893fdb8803d3bdf75f4891e19b0aacf56a30b3cf21570eb0024cN.exe	84
PID 4236 wrote to memory of 3312	4236	4454014afef3893fdb8803d3bdf75f4891e19b0aacf56a30b3cf21570eb0024cN.exe	84
PID 4236 wrote to memory of 3312	4236	4454014afef3893fdb8803d3bdf75f4891e19b0aacf56a30b3cf21570eb0024cN.exe	84
PID 4236 wrote to memory of 3312	4236	4454014afef3893fdb8803d3bdf75f4891e19b0aacf56a30b3cf21570eb0024cN.exe	84
PID 4236 wrote to memory of 3312	4236	4454014afef3893fdb8803d3bdf75f4891e19b0aacf56a30b3cf21570eb0024cN.exe	84
PID 4236 wrote to memory of 3312	4236	4454014afef3893fdb8803d3bdf75f4891e19b0aacf56a30b3cf21570eb0024cN.exe	84
PID 4236 wrote to memory of 3312	4236	4454014afef3893fdb8803d3bdf75f4891e19b0aacf56a30b3cf21570eb0024cN.exe	84
PID 4236 wrote to memory of 3312	4236	4454014afef3893fdb8803d3bdf75f4891e19b0aacf56a30b3cf21570eb0024cN.exe	84
PID 3312 wrote to memory of 840	3312	4454014afef3893fdb8803d3bdf75f4891e19b0aacf56a30b3cf21570eb0024cN.exe	85
PID 3312 wrote to memory of 840	3312	4454014afef3893fdb8803d3bdf75f4891e19b0aacf56a30b3cf21570eb0024cN.exe	85
PID 3312 wrote to memory of 840	3312	4454014afef3893fdb8803d3bdf75f4891e19b0aacf56a30b3cf21570eb0024cN.exe	85
PID 840 wrote to memory of 3272	840	cmd.exe	89
PID 840 wrote to memory of 3272	840	cmd.exe	89
PID 840 wrote to memory of 3272	840	cmd.exe	89
PID 3312 wrote to memory of 1736	3312	4454014afef3893fdb8803d3bdf75f4891e19b0aacf56a30b3cf21570eb0024cN.exe	90
PID 3312 wrote to memory of 1736	3312	4454014afef3893fdb8803d3bdf75f4891e19b0aacf56a30b3cf21570eb0024cN.exe	90
PID 3312 wrote to memory of 1736	3312	4454014afef3893fdb8803d3bdf75f4891e19b0aacf56a30b3cf21570eb0024cN.exe	90
PID 1736 wrote to memory of 1508	1736	csrsll.exe	96
PID 1736 wrote to memory of 1508	1736	csrsll.exe	96
PID 1736 wrote to memory of 1508	1736	csrsll.exe	96
PID 1736 wrote to memory of 1508	1736	csrsll.exe	96
PID 1736 wrote to memory of 1508	1736	csrsll.exe	96
PID 1736 wrote to memory of 1508	1736	csrsll.exe	96
PID 1736 wrote to memory of 1508	1736	csrsll.exe	96
PID 1736 wrote to memory of 1508	1736	csrsll.exe	96
PID 1736 wrote to memory of 4560	1736	csrsll.exe	97
PID 1736 wrote to memory of 4560	1736	csrsll.exe	97
PID 1736 wrote to memory of 4560	1736	csrsll.exe	97
PID 1736 wrote to memory of 4560	1736	csrsll.exe	97
PID 1736 wrote to memory of 4560	1736	csrsll.exe	97
PID 1736 wrote to memory of 4560	1736	csrsll.exe	97
PID 1736 wrote to memory of 4560	1736	csrsll.exe	97
PID 1736 wrote to memory of 4560	1736	csrsll.exe	97

C:\Users\Admin\AppData\Local\Temp\4454014afef3893fdb8803d3bdf75f4891e19b0aacf56a30b3cf21570eb0024cN.exe
"C:\Users\Admin\AppData\Local\Temp\4454014afef3893fdb8803d3bdf75f4891e19b0aacf56a30b3cf21570eb0024cN.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4236
- C:\Users\Admin\AppData\Local\Temp\4454014afef3893fdb8803d3bdf75f4891e19b0aacf56a30b3cf21570eb0024cN.exe
  "C:\Users\Admin\AppData\Local\Temp\4454014afef3893fdb8803d3bdf75f4891e19b0aacf56a30b3cf21570eb0024cN.exe"
  2⤵
  - Checks computer location settings
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:3312
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\BIUVQ.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:840
  - - C:\Windows\SysWOW64\reg.exe
      REG ADD "HKCU\Software\Microsoft\Windows\CurrentVersion\Run" /v "Win Pdf" /t REG_SZ /d "C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe" /f
      4⤵
      Adds Run key to start application
      System Location Discovery: System Language Discovery
      PID:3272
- - C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe
    "C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious use of SetThreadContext
    - System Location Discovery: System Language Discovery
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:1736
  - - C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe
      "C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe"
      4⤵
      Executes dropped EXE
      System Location Discovery: System Language Discovery
      Suspicious use of AdjustPrivilegeToken
      Suspicious use of SetWindowsHookEx
      PID:1508
  - - C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe
      "C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe"
      4⤵
      Executes dropped EXE
      System Location Discovery: System Language Discovery
      PID:4560

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\BIUVQ.txt

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe

Filesize
90KB

MD5
4f2757b5f5dc5d5c05231d2890d78cfc

SHA1
c531611ddb5360095f63967c3a7f7d609c943f20

SHA256
8fcd46ce9d7b97bc349a887793f30315456d728f89b667191aede1d6bb03f77a

SHA512
7031d19f1518e74e272b4dd71a39a3d485ce975c7e31f8cdafc1c6b819658aed43ab93580d7ba91769579625ea354f25d346d2d9783a0baf75d78e5060a827f1

Download Submit
memory/1508-61-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1736-55-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1736-41-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1736-40-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3312-9-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3312-60-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3312-7-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3312-39-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3312-11-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3312-58-0x0000000000410000-0x00000000004D9000-memory.dmp

Filesize
804KB

Download
memory/4236-14-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4236-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4236-5-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4236-6-0x0000000002A60000-0x0000000002A62000-memory.dmp

Filesize
8KB

Download
memory/4236-3-0x00000000021D0000-0x00000000021D2000-memory.dmp

Filesize
8KB

Download
memory/4236-4-0x00000000021E0000-0x00000000021E2000-memory.dmp

Filesize
8KB

Download
memory/4560-51-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4560-57-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4560-56-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4560-54-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4560-45-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4560-62-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads